Secure group communications using key graphs
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
A Time-Bound Cryptographic Key Assignment Scheme for Access Control in a Hierarchy
IEEE Transactions on Knowledge and Data Engineering
Challenges in Location-Aware Computing
IEEE Pervasive Computing
ELK, a New Protocol for Efficient Large-Group Key Distribution
SP '01 Proceedings of the 2001 IEEE Symposium on Security and Privacy
Dynamic and efficient key management for access hierarchies
Proceedings of the 12th ACM conference on Computer and communications security
Merging: An Efficient Solution for a Time-Bound Hierarchical Key Assignment Scheme
IEEE Transactions on Dependable and Secure Computing
Key management for non-tree access hierarchies
Proceedings of the eleventh ACM symposium on Access control models and technologies
Provably-secure time-bound hierarchical key assignment schemes
Proceedings of the 13th ACM conference on Computer and communications security
Efficient techniques for realizing geo-spatial access control
ASIACCS '07 Proceedings of the 2nd ACM symposium on Information, computer and communications security
Multi-Dimensional Range Query over Encrypted Data
SP '07 Proceedings of the 2007 IEEE Symposium on Security and Privacy
New constructions for provably-secure time-bound hierarchical key assignment schemes
Proceedings of the 12th ACM symposium on Access control models and technologies
Dynamic and Efficient Key Management for Access Hierarchies
ACM Transactions on Information and System Security (TISSEC)
Efficient and secure distribution of massive geo-spatial data
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Conjunctive, subset, and range queries on encrypted data
TCC'07 Proceedings of the 4th conference on Theory of cryptography
Hierarchical identity based encryption with constant size ciphertext
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Incorporating temporal capabilities in existing key management schemes
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Enforcing subscription-based authorization policies in cloud scenarios
DBSec'12 Proceedings of the 26th Annual IFIP WG 11.3 conference on Data and Applications Security and Privacy
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The prevalent nature of Internet makes it a well suitable medium for many new types of services such as location-based services and streaming content. Subscribers to such services normally receive encrypted content and can obtain access to it if they possess the corresponding decryption key. Furthermore, in location-based services a subscription is normally granted to a geographic area specified by user-specific coordinates (x1, x2), (y1, y2) and custom time interval (t1, t2). Similarly, subscriptions to other services also involve multiple dimensions. The problem of key management is then to assign keys to each point on a D-dimensional grid and to subscribers in such a way as to permit all users to obtain access only to the resources in their subscriptions and minimize the associated overhead. In this work, we develop a novel key management scheme for multi-dimensional subscriptions that both outperforms existing solutions and supports a richer set of access privileges than existing schemes. Our scheme is provably secure under the Decision Linear Diffie-Hellman Assumption.